Pressure relief adjustment means for check valve

Details Pressure relief adjustment means for check valve Pressure relief adjustment means for check valve

1974-08-19

1976-02-10

Cline, William R.

Fluid handling

Line condition change responsive valves

Direct response valves

251297, 74531, F16K 1502

Patent

active

039372502

ABSTRACT:
A check valve comprises a spring biased poppet reciprocally mounted in a housing thereof to normally close an inlet to the valve. A set screw is threadably mounted in an exposed position on the housing to selectively vary the spring load on the poppet to thus vary the pressure setting thereof. An annular elastomeric locking member circumvents the set screw and is compressed radially inwardly thereagainst by a clamping member, releasably attached on the housing, to retain the set screw in its preset position.

REFERENCES:
patent: 2367106 (1945-01-01), Dolch
patent: 2564815 (1951-08-01), Raymond
patent: 2658715 (1953-11-01), Kistnel
patent: 2884952 (1959-05-01), Mason et al.
patent: 2963038 (1960-12-01), Sharp
patent: 3272218 (1966-09-01), Johnson
patent: 3297049 (1967-01-01), Moskovitz
patent: 3425444 (1969-02-01), Jones
patent: 3443579 (1969-05-01), Doolittle
patent: 3602340 (1971-08-01), Budzich

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